Ailanthus altissima (P. Miller) Swingle
July 19, Plymouth Long Beach, Plymouth
Another, more conspicuous tree-of-heaven on the outer Beach, taken by many for a native sumac. However, a sumac would
have had sharply and regularly toothed leaflets, while on this tree leaflet margin
is entire, except for a single blunt tooth.
— Photo Alexey Zinovjev